Patents by Inventor David A. Larshus

David A. Larshus has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5598272
    Abstract: A visual calibrator for a digital color imaging proof system includes a series of patches on a carrier layer, the patches composed of combinations of at least two colors in halftone or continuous print, and associated with at least some of the patches are alphanumeric markings which relate to specific changes in an imaging signal for adjustment of the imaging system to modify the color of a proof towards a desired target color.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: January 28, 1997
    Assignee: Imation, Inc.
    Inventors: Richard S. Fisch, David A. Larshus, John A. Sands, Mark E. VerMurlen
  • Patent number: 5548317
    Abstract: A process for the formation of a cel for use in color animation motion picture production comprises the steps of providing electronic information of a color image to a thermal printer, thermally printing a first image having at least some opaque areas therein onto a transparent carrier sheet from said electronic information, and optically combining said first image with a second image on a separate transparent sheet, the composite of the first and second image forming a cel.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: August 20, 1996
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Richard S. Fisch, David A. Larshus
  • Patent number: 5409883
    Abstract: A process for the manufacture of a thermal transfer donor element having at least two areas of thermally transferable colorant, at least one of said areas being a thermal dye transfer composition and at least one of said areas being a thermal mass transfer composition, which process comprises coating a first thermal dye or mass transferable layer containing a colorant onto a temporary substrate to form a primary thermal transfer element, said layer having a measurable surface area, and either 1) thermally transferring less than all of said layer onto a second temporary substrate having a non-imagewise distributed area of a second thermally respectively mass or dye transferable colorant thereon to form a thermal transfer donor element with at least two areas of different thermally transferable materials, or 2) splicing a portion of only one primary thermal dye or mass transfer element onto another thermal transfer element having at least a non-imagewise distributed second thermal mass or dye, transferable, res
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: April 25, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David A. Larshus, Richard S. Fisch, Jeffrey C. Chang, Peter A. Vono, Hsin-Hsin Chou